The Arch of Triumph over the altar is of the same period. Those on the vault of the tribune are of the thirteenth century. On the loggia, over the front entrance, is another very fine mosaic picture of the fourteenth century. _On the left of the high altar is the_ BORGHESE CHAPEL. The altar-piece is of jasper; the painting of the Virgin and Child is said to be by S. Luke. Above is the bronze bas-relief representing the miracle of the snow which fell in August A.D. 352 upon the exact space occupied by the basilica. The frescoes are by Guido, Lanfranco, Arpino, and Cigoli. The monuments of Paul V. and Clement VIII. are composed of beautiful bas-reliefs representing scenes in their lives. _Opposite is the_ SIXTINE CHAPEL, erected by, and containing the tomb of, Sixtus V. It was lately restored by Pius IX., who was to have had his temporary resting-place here, behind the altar. The altar is a representation of the tomb of our Saviour at Jerusalem, and is a splendid piece of workmanship. Beneath it is preserved part of the manger. Opposite the lower altar is a statue of S. Gaetano, by Bernini. The frescoes of the dome, representing the hosts of heaven, are beautifully executed by Podesti. The monument to Sixtus V. is by Valsoldo; that to Paul V. by L. de Sarzana. The bas-reliefs represent historical subjects of the two pontificates. _Leaving the church by the end opposite to that by which we entered_, we find ourselves in the piazza, which contains a handsome column, taken from the Basilica of Constantine by Paul V. It is surmounted by a figure in bronze representing the Virgin. The column is forty-seven feet high, without the base and capital. _On the left of the church is the_ COLUMN OF HENRY IV. In 1873 the column of an inverted cannon, which stood in front of the Church of S. Antonio Abate, erected in 1596 to commemorate the reconciliation of Henry IV. of France to Clement VIII., was removed in altering the level of the road. At the time of its removal, a majolica vase was discovered under the base, which on being lately opened was found to contain a large brass medal, bearing the following inscription:-- IN HONOREM PASSIONIS D. N. JESU CHRISTI ET B. V. MARIÆ AC S. ANTOINI ET OMNIUM SANCTORUM, REVERENDUS DOMINUS. Carolus Anison Galeus, preceptor generalis preceptoriæ ejusdem S. Antoini prope Albam, terram Petragoricensis Dioceseos et Vicarius in Prioratu S. Antoini de urbe suis propriis expensis posuit. Sedente Smo domino nostro Clemente VIII. Pont. Opt. Max. anno domini MDXCVI. The column has now been re-erected, but not inverted, on the east side of S. Maria Maggiore, and the vase and its coin re-interred beneath it. It appears that Louis XIV. caused the original inscription on the base of the column to be removed, and this has lately been found in the convent of S. Antony, recording that the column was erected in memory of the Christian absolution of Henry the Fourth of France and Navarre.